| 05:17 MST |  Mostly Cloudy | -21°C / -6°F | -23°C / -9°F | 84% | 999 mb (29.5 in) | SW 44 kph (SW 27.6 mph) | - | |
| | KCPW 091217Z AUTO 23024G32KT BKN002 BKN007 BKN120 M21/M23 A2951 RMK AO2 PWINO |
| 04:57 MST |  Overcast | -21°C / -6°F | -23°C / -9°F | 84% | 999 mb (29.5 in) | SW 32 kph (SW 19.6 mph) | - | |
| | KCPW 091157Z AUTO 22017G24KT OVC002 M21/M23 A2951 RMK AO2 PWINO |
| 04:37 MST |  Overcast | -21°C / -6°F | -23°C / -9°F | 84% | 999 mb (29.5 in) | SW 33 kph (SW 20.7 mph) | - | |
| | KCPW 091137Z AUTO 22018G23KT OVC002 M21/M23 A2951 RMK AO2 PWINO |
| 04:17 MST |  Overcast | -21°C / -6°F | -23°C / -9°F | 84% | 999 mb (29.5 in) | SW 30 kph (SW 18.4 mph) | - | |
| | KCPW 091117Z AUTO 23016G21KT OVC002 M21/M23 A2951 RMK AO2 PWINO |
| 03:57 MST |  Overcast | -21°C / -6°F | -23°C / -9°F | 84% | 1000 mb (29.53 in) | SW 32 kph (SW 19.6 mph) | - | |
| | KCPW 091057Z AUTO 22017G24KT OVC002 M21/M23 A2952 RMK AO2 PWINO |
| 03:37 MST |  Overcast | -20°C / -4°F | -23°C / -9°F | 77% | 1000 mb (29.53 in) | SW 32 kph (SW 19.6 mph) | - | |
| | KCPW 091037Z AUTO 22017G25KT OVC002 M20/M23 A2953 RMK AO2 PWINO |
| 03:17 MST |  Overcast | -20°C / -4°F | -23°C / -9°F | 77% | 1000 mb (29.53 in) | SW 35 kph (SW 21.9 mph) | - | |
| | KCPW 091017Z AUTO 21019G29KT OVC002 M20/M23 A2954 RMK AO2 PWINO |
| 02:57 MST |  Overcast | -20°C / -4°F | -23°C / -9°F | 77% | 1000 mb (29.53 in) | SW 41 kph (SW 25.3 mph) | - | |
| | KCPW 090957Z AUTO 22022G31KT BKN002 OVC006 M20/M23 A2953 RMK AO2 PWINO |
| 02:37 MST |  Overcast | -20°C / -4°F | -23°C / -9°F | 77% | 1000 mb (29.53 in) | SW 52 kph (SW 32.2 mph) | - | |
| | KCPW 090937Z AUTO 23028G36KT BKN004 OVC009 M20/M23 A2953 RMK AO2 PWINO |
| 02:17 MST |  Mostly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 1000 mb (29.53 in) | SW 54 kph (SW 33.4 mph) | - | |
| | KCPW 090917Z AUTO 23029G38KT BKN004 BKN009 M20/M23 A2952 RMK AO2 PWINO |
| 01:57 MST |  Mostly Cloudy | -20°C / -4°F | -23°C / -9°F | 77% | 999 mb (29.5 in) | SW 54 kph (SW 33.4 mph) | - | |
| | KCPW 090857Z AUTO 23029G41KT BKN004 BKN008 BKN012 M20/M23 A2951 RMK AO2 PWINO |
| 01:37 MST |  Overcast | -20°C / -4°F | -22°C / -8°F | 84% | 999 mb (29.5 in) | SW 41 kph (SW 25.3 mph) | - | |
| | KCPW 090837Z AUTO 22022G39KT BKN001 OVC007 M20/M22 A2951 RMK AO2 PWINO |
| 01:17 MST |  Overcast | -20°C / -4°F | -22°C / -8°F | 84% | 999 mb (29.5 in) | SW 54 kph (SW 33.4 mph) | - | |
| | KCPW 090817Z AUTO 23029G40KT BKN001 OVC007 M20/M22 A2949 RMK AO2 PWINO |
| 00:57 MST |  Overcast | -20°C / -4°F | -22°C / -8°F | 84% | 999 mb (29.5 in) | SW 43 kph (SW 26.5 mph) | - | |
| | KCPW 090757Z AUTO 22023G33KT BKN003 OVC007 M20/M22 A2949 RMK AO2 PWINO |
| 00:37 MST |  Overcast | -20°C / -4°F | -22°C / -8°F | 84% | 999 mb (29.5 in) | SW 50 kph (SW 31.1 mph) | - | |
| | KCPW 090737Z AUTO 22027G40KT OVC003 M20/M22 A2949 RMK AO2 PWINO |
| 00:17 MST |  Overcast | -19°C / -2°F | -22°C / -8°F | 77% | 999 mb (29.5 in) | SW 46 kph (SW 28.8 mph) | - | |
| | KCPW 090717Z AUTO 23025G37KT OVC003 M19/M22 A2950 RMK AO2 PWINO |